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# -*- coding: utf-8 -*-
"""
PyUnit unit tests
"""
import unittest
import sys
import locale
try:
import json
except ImportError:
import simplejson as json
import json_diff
from StringIO import StringIO
import codecs
from test_strings import ARRAY_DIFF, ARRAY_NEW, ARRAY_OLD, \
NESTED_DIFF, NESTED_DIFF_EXCL, NESTED_DIFF_INCL, NESTED_NEW, NESTED_OLD, \
NO_JSON_NEW, NO_JSON_OLD, SIMPLE_ARRAY_DIFF, SIMPLE_ARRAY_NEW, \
NESTED_DIFF_IGNORING, \
SIMPLE_ARRAY_OLD, SIMPLE_DIFF, SIMPLE_DIFF_HTML, SIMPLE_NEW, SIMPLE_OLD
class OptionsClass(object):
def __init__(self, inc=None, exc=None, ign=None):
self.exclude = exc
self.include = inc
self.ignore_append = ign
class OurTestCase(unittest.TestCase):
def _run_test(self, oldf, newf, difff, msg="", opts=None):
diffator = json_diff.Comparator(oldf, newf, opts)
diff = diffator.compare_dicts()
expected = json.load(difff)
self.assertEqual(json.dumps(diff, sort_keys=True),
json.dumps(expected, sort_keys=True),
msg + "\n\nexpected = %s\n\nobserved = %s" %
(json.dumps(expected, sort_keys=True, indent=4,
ensure_ascii=False),
json.dumps(diff, sort_keys=True, indent=4,
ensure_ascii=False)))
def _run_test_strings(self, olds, news, diffs, msg="", opts=None):
self._run_test(StringIO(olds), StringIO(news), StringIO(diffs),
msg, opts)
def _run_test_formatted(self, oldf, newf, difff, msg="", opts=None):
diffator = json_diff.Comparator(oldf, newf, opts)
diff = ("\n".join([line.strip() \
for line in unicode(\
json_diff.HTMLFormatter(diffator.compare_dicts())).\
split("\n")])).strip()
expected = ("\n".join([line.strip() for line in difff if line])).\
strip()
self.assertEqual(diff, expected, msg +
"\n\nexpected = %s\n\nobserved = %s" %
(expected, diff))
class TestBasicJSON(OurTestCase):
def test_empty(self):
diffator = json_diff.Comparator({}, {})
diff = diffator.compare_dicts()
self.assertEqual(json.dumps(diff).strip(), "{}",
"Empty objects diff.\n\nexpected = %s\n\nobserved = %s" %
({}, diff))
def test_null(self):
self._run_test_strings('{"a": null}', '{"a": null}',
'{}', "Nulls")
def test_null_to_string(self):
self._run_test_strings('{"a": null}', '{"a": "something"}',
'{"_update": {"a": "something"}}', "Null changed to string")
def test_boolean(self):
self._run_test_strings('{"a": true}', '{"a": false}',
'{"_update": {"a": false}}', "Booleans")
def test_integer(self):
self._run_test_strings(u'{"a": 1}', '{"a": 2}',
u'{"_update": {"a": 2}}', "Integers")
def test_float(self):
self._run_test_strings(u'{"a": 1.0}', '{"a": 1.1}',
u'{"_update": {"a": 1.1}}', "Floats")
def test_int_to_float(self):
self._run_test_strings(u'{"a": 1}', '{"a": 1.0}',
u'{"_update": {"a": 1.0}}', "Integer changed to float")
def test_simple(self):
self._run_test_strings(SIMPLE_OLD, SIMPLE_NEW, SIMPLE_DIFF,
"All-scalar objects diff.")
def test_simple_formatted(self):
self._run_test_formatted(StringIO(SIMPLE_OLD), StringIO(SIMPLE_NEW),
StringIO(SIMPLE_DIFF_HTML),
"All-scalar objects diff (formatted).")
def test_simple_array(self):
self._run_test_strings(SIMPLE_ARRAY_OLD, SIMPLE_ARRAY_NEW,
SIMPLE_ARRAY_DIFF, "Simple array objects diff.")
def test_another_array(self):
self._run_test_strings(ARRAY_OLD, ARRAY_NEW,
ARRAY_DIFF, "Array objects diff.")
class TestHappyPath(OurTestCase):
def test_realFile(self):
self._run_test(open("test/old.json"), open("test/new.json"),
open("test/diff.json"), "Simply nested objects (from file) diff.")
def test_nested(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF,
"Nested objects diff.")
def test_nested_formatted(self):
self._run_test_formatted(open("test/old.json"), open("test/new.json"),
codecs.open("test/nested_html_output.html", "r", "utf-8"),
"Simply nested objects (from file) diff formatted as HTML.")
def test_nested_excluded(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_EXCL,
"Nested objects diff with exclusion.",
OptionsClass(exc=["nome"]))
def test_nested_included(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_INCL,
"Nested objects diff.", OptionsClass(inc=["nome"]))
def test_nested_ignoring_append(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_IGNORING,
"Nested objects diff.", OptionsClass(ign=True))
class TestadPath(OurTestCase):
def test_no_JSON(self):
self.assertRaises(json_diff.BadJSONError,
json_diff.Comparator, StringIO(NO_JSON_OLD),
StringIO(NO_JSON_NEW)
)
def test_bad_JSON_no_hex(self):
self.assertRaises(json_diff.BadJSONError, self._run_test_strings,
u'{"a": 0x1}', '{"a": 2}', u'{"_update": {"a": 2}}',
"Hex numbers not supported")
def test_bad_JSON_no_octal(self):
self.assertRaises(json_diff.BadJSONError, self._run_test_strings,
u'{"a": 01}', '{"a": 2}', u'{"_update": {"a": 2}}',
"Octal numbers not supported")
class TestPiglitData(OurTestCase):
def test_piglit_result_only(self):
self._run_test(open("test/old-testing-data.json"),
open("test/new-testing-data.json"),
open("test/diff-result-only-testing-data.json"),
"Large piglit reports diff (just resume field).",
OptionsClass(inc=["result"]))
# def test_piglit_results(self):
# self._run_test(open("test/old-testing-data.json"),
# open("test/new-testing-data.json"),
# open("test/diff-testing-data.json"), "Large piglit results diff.")
class TestMainArgsMgmt(unittest.TestCase):
def test_args_help(self):
save_stdout = StringIO()
sys.stdout = save_stdout
try:
json_diff.main(["./test_json_diff.py", "-h"])
except SystemExit:
save_stdout.seek(0)
sys.stdout = sys.__stdout__
expected = "Usage:"
observed = save_stdout.read()
self.assertEquals(observed[:len(expected)], expected,
"testing -h usage message")
def test_args_run_same(self):
save_stdout = StringIO()
sys.stdout = save_stdout
res = json_diff.main(["./test_json_diff.py",
"test/old.json", "test/old.json"])
sys.stdout = sys.__stdout__
self.assertEquals(res, 0, "testing -h usage message")
def test_args_run_different(self):
save_stdout = StringIO()
sys.stdout = save_stdout
cur_loc = locale.getlocale()
locale.setlocale(locale.LC_ALL, ("cs_CZ", "utf-8"))
res = json_diff.main(["./test_json_diff.py",
"test/old.json", "test/new.json"])
sys.stdout = sys.__stdout__
locale.setlocale(locale.LC_ALL, cur_loc)
self.assertEquals(res, 1, "testing -h usage message")
if __name__ == "__main__":
unittest.main()
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